Home / 99,177.64-148,774.76-31,719.24

Finding the Fourth Proportional to 99,177.64, 148,774.76 and 31,719.24

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Solution

The fourth proportional to 99,177.64, 148,774.76 and 31,719.24 is: 47,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,177.64 : 148,774.76 = 31,719.24 : x
  2. Step 2: Convert to fraction form
    99,177.64/148,774.76 = 31,719.24/x
  3. Step 3: Cross multiply
    99,177.64x = 148,774.76 × 31,719.24
  4. Step 4: Simplify right side
    99,177.64x = 4,719,022,318.38
  5. Step 5: Solve for x
    x = 4,719,022,318.38/99,177.64
  6. Step 6: Final answer
    x = 47,581.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.